Question

when all herbivores animals will be destroyed from the earth​

Answer 1

Answer:

1. In case if all herbivores are killed in a terrestrial ecosystem, at last all the life will die. It is because, if there is no herbivores, then there will be no source of food for the carnivores. Thus, the balance of ecosystem will fall down and the life would come to an end.

Answer 2

Answer:

when Earth was extincit